moved stuff around again. WPF didnt like things once they were moved. Also wired up Join dialog.

windows/WinUI/JoinNetworkView.xaml

@@ -0,0 +1,16 @@
+<Window x:Class="WinUI.JoinNetworkView"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WinUI"
+        mc:Ignorable="d"
+        Title="Join a Network" Height="120" Width="320">
+    <Grid HorizontalAlignment="Left" Margin="0,0,0,0" Width="315">
+        <TextBox x:Name="joinNetworkBox" HorizontalAlignment="Left" Height="23" Margin="10,10,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="291" PreviewTextInput="joinNetworkBox_OnTextEntered" PreviewKeyDown="joinNetworkBox_OnKeyDown"/>
+        <CheckBox x:Name="allowManagedCheckbox" Content="Allow Managed" HorizontalAlignment="Left" Margin="10,38,0,0" VerticalAlignment="Top" IsChecked="True"/>
+        <CheckBox x:Name="allowGlobalCheckbox" Content="Allow Global" HorizontalAlignment="Left" Margin="118,38,0,0" VerticalAlignment="Top"/>
+        <CheckBox x:Name="allowDefaultCheckbox" Content="Allow Default" HorizontalAlignment="Left" Margin="210,38,-6,0" VerticalAlignment="Top"/>
+        <Button x:Name="joinButton" Content="Join" HorizontalAlignment="Left" Margin="226,58,0,0" Background="#FFFFB354" VerticalAlignment="Top" Width="75" Click="joinButton_Click" IsEnabled="False"/>
+    </Grid>
+</Window>

windows/WinUI/JoinNetworkView.xaml.cs

@@ -0,0 +1,126 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace WinUI
+{
+    /// <summary>
+    /// Interaction logic for JoinNetworkView.xaml
+    /// </summary>
+    public partial class JoinNetworkView : Window
+    {
+        Regex charRegex = new Regex("[0-9a-fxA-FX]");
+        Regex wholeStringRegex = new Regex("^[0-9a-fxA-FX]+$");
+
+        public JoinNetworkView()
+        {
+            InitializeComponent();
+
+            DataObject.AddPastingHandler(joinNetworkBox, onPaste);
+            DataObject.AddCopyingHandler(joinNetworkBox, onCopyCut);
+        }
+
+        private void joinNetworkBox_OnTextEntered(object sender, TextCompositionEventArgs e)
+        {
+            e.Handled = !charRegex.IsMatch(e.Text);
+
+            if ( (joinNetworkBox.Text.Length + e.Text.Length) == 16)
+            {
+                joinButton.IsEnabled = true;
+            }
+            else
+            {
+                joinButton.IsEnabled = false;
+            }
+        }
+
+        private void joinNetworkBox_OnKeyDown(object sender, KeyEventArgs e)
+        {
+            if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
+            {
+                if (e.Key == Key.X && joinNetworkBox.IsSelectionActive)
+                {
+                    // handle ctrl-x removing characters
+                    joinButton.IsEnabled = false;
+                }
+            }
+            else if (e.Key == Key.Delete || e.Key == Key.Back)
+            {
+                if ((joinNetworkBox.Text.Length - 1) == 16)
+                {
+                    joinButton.IsEnabled = true;
+                }
+                else
+                {
+                    joinButton.IsEnabled = false;
+                }
+            }
+            else
+            {
+                if ((joinNetworkBox.Text.Length + 1) > 16)
+                {
+                    e.Handled = true;
+                }
+            }
+        }
+
+        private void onPaste(object sender, DataObjectPastingEventArgs e)
+        {
+            var isText = e.SourceDataObject.GetDataPresent(DataFormats.UnicodeText, true);
+            if (!isText)
+            {
+                joinButton.IsEnabled = false;
+                return;
+            }
+
+            var text = e.SourceDataObject.GetData(DataFormats.UnicodeText) as string;
+
+            if (!wholeStringRegex.IsMatch(text))
+            {
+                e.Handled = true;
+                e.CancelCommand();
+            }
+
+            if (text.Length == 16 || (joinNetworkBox.Text.Length + text.Length) == 16)
+            {
+                joinButton.IsEnabled = true;
+            }
+            else if (text.Length > 16 || (joinNetworkBox.Text.Length + text.Length) > 16)
+            {
+                e.Handled = true;
+                e.CancelCommand();
+            }
+            else
+            {
+                joinButton.IsEnabled = false;
+            }
+        }
+
+        private void onCopyCut(object sender, DataObjectCopyingEventArgs e)
+        {
+            
+        }
+
+        private void joinButton_Click(object sender, RoutedEventArgs e)
+        {
+            bool allowDefault = allowDefaultCheckbox.IsChecked.Value;
+            bool allowGlobal = allowGlobalCheckbox.IsChecked.Value;
+            bool allowManaged = allowManagedCheckbox.IsChecked.Value;
+
+            APIHandler.Instance.JoinNetwork(joinNetworkBox.Text, allowManaged, allowGlobal, allowDefault);
+
+            Close();
+        }
+    }
+}

windows/WinUI/ToolbarItem.xaml.cs

@@ -30,6 +30,7 @@ namespace WinUI
         private APIHandler handler = APIHandler.Instance;
 
         private NetworkListView netListView = null;
+        private JoinNetworkView joinNetView = null;
 
         private NetworkMonitor mon = NetworkMonitor.Instance;
 
@@ -127,12 +128,17 @@ namespace WinUI
 
         private void ToolbarItem_JoinNetworkClicked(object sender, System.EventArgs e)
         {
-
+            if (joinNetView == null)
+            {
+                joinNetView = new JoinNetworkView();
+                joinNetView.Closed += JoinNetworkClosed;
+                joinNetView.Show();
+            }
         }
 
         private void JoinNetworkClosed(object sender, System.EventArgs e)
         {
-
+            joinNetView = null;
         }
 
         private void ToolbarItem_NetworkClicked(object sender, System.Windows.RoutedEventArgs e)

windows/WinUI/Views/JoinNetworkView.xaml

@@ -1,12 +0,0 @@
-<Window x:Class="WinUI.JoinNetworkView"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:WinUI"
-        mc:Ignorable="d"
-        Title="JoinNetworkView" Height="300" Width="300">
-    <Grid>
-        
-    </Grid>
-</Window>

windows/WinUI/Views/JoinNetworkView.xaml.cs

@@ -1,27 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
-using System.Windows.Shapes;
-
-namespace WinUI
-{
-    /// <summary>
-    /// Interaction logic for JoinNetworkView.xaml
-    /// </summary>
-    public partial class JoinNetworkView : Window
-    {
-        public JoinNetworkView()
-        {
-            InitializeComponent();
-        }
-    }
-}

windows/WinUI/WinUI.csproj

@@ -101,6 +101,12 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </ApplicationDefinition>
+    <Compile Include="AboutView.xaml.cs">
+      <DependentUpon>AboutView.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="JoinNetworkView.xaml.cs">
+      <DependentUpon>JoinNetworkView.xaml</DependentUpon>
+    </Compile>
     <Compile Include="NetworkMonitor.cs" />
     <Compile Include="NetworkRoute.cs" />
     <Compile Include="NetworksPage.xaml.cs">
@@ -116,6 +122,14 @@
     <Compile Include="ZeroTierPeer.cs" />
     <Compile Include="ZeroTierNetwork.cs" />
     <Compile Include="ZeroTierStatus.cs" />
+    <Page Include="AboutView.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="JoinNetworkView.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="NetworkListView.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>